An endurance runner plans to run 400km over four ultra-marathons for charity.

Yaseed Chaumoo, of Harrow, will run 100km this weekend to raise money for Imaan, an LGBT charity for Muslims.

The Grand Union Challenge is an ultra marathon from London’s Regent’s Park to Bletchley and will be his second for the cause this year.

During 2014, the 27-year-old plans to run four ‘ultra marathons’ and climb the three highest mountains of the UK as part of the Three Peaks Challenge.

Last month he completed the ‘London 2 Brighton’ ultra marathon, but is yet to finish the Grand Union Challenge, the Isle of Wight and Thames Path Challenges.

Mr Chaumoo said: “Last year I challenged myself to do the ‘London 2 Brighton’ challenge for the British Red Cross and it was a phenomenal experience as well as a test of willpower and endurance.

"I decided to support Imaan because I know it is a very difficult issue for Muslims and I’ve heard some heartbreaking stories. Organisations like Imaan matter in providing support for LGBT Muslims who suffer major challenges in dealing with their different identities.”

He hopes to raise a grand total of £5,000 for Imaan by the end of the year.

A spokesperson from Imaan said: “We are overwhelmed and honoured Yaseed is fundraising for our work.”